Bill Gates has sold shares in G4S - which other companies has he recently invested in?

Bill Gates, the world’s richest man, has reduced his stake in beleaguered security company G4S.

It is thought that Gates’ stake in G4S is now down to less than 3%.

Over 45 million shares in the company were bought last year through the Bill and Melinda Gates Foundation and Gates’ investment company Cascade Investments.

At the time, the stake was valued at £110m.

Didn’t know Bill Gates was an investor in G4S? Here are four other companies he’s invested in recently:

1. Kymab

In May, Gates invested £12m into Cambridge-based Kymab, a company that is developing antibody-based therapies for Malaria, HIV and cancer.

Founded in 2009, the company also raised £12m from Wellcome Trust this month.

2. Republic Services

In 2012, Gates bought into Republic Services, the second largest waste management company in the US. At the time, he held over $2.2bn worth of stocks in the company. Republic Services operates 334 trash collection companies, 191 active landfills and 74 recycling facilities.

3. FCC

In 2012, Bill Gates stumped up $148.4m for almost 6% of the Spanish construction company Fomento de Construcciones & Contratas. With the investment, Gates became the second largest shareholder in the company. The company employs over 80,000 people in 56 countries.

4. Ecolab

Bill Gates is the second-largest shareholder in Ecolab. As of 2013, Gates’ Cascade Investments held 27.9 millions shares in Ecolab.

Gates is also known to own another 4.37 million shares in the company through the Bill & Melinda Gates Foundation.